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Finding the Fourth Proportional to 18,612.56, 27,914.82 and 6,606.32

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Solution

The fourth proportional to 18,612.56, 27,914.82 and 6,606.32 is: 9,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.56 : 27,914.82 = 6,606.32 : x
  2. Step 2: Convert to fraction form
    18,612.56/27,914.82 = 6,606.32/x
  3. Step 3: Cross multiply
    18,612.56x = 27,914.82 × 6,606.32
  4. Step 4: Simplify right side
    18,612.56x = 184,414,233.66
  5. Step 5: Solve for x
    x = 184,414,233.66/18,612.56
  6. Step 6: Final answer
    x = 9,908.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.